________they'vegottoknoweachotheralittlebetter,theygetalongjustfine.
Itisusefultoscience_______theearthasanobjectinspace.
________theconcerthadbegundidwerealizewhatasplendidshowitwasgoingtobe.
Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.